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From: wayne@csri.toronto.edu (Wayne Hayes)
Subject: Re: Voyager Update - 11/09/90
Message-ID: <1990Nov10.151505.26167@jarvis.csri.toronto.edu>
Keywords: Voyager, JPL
Organization: CSRI, University of Toronto
References: <1990Nov10.001052.28690@jato.jpl.nasa.gov>
Date: 10 Nov 90 20:15:05 GMT
Lines: 27

In article <1990Nov10.001052.28690@jato.jpl.nasa.gov> baalke@mars.jpl.nasa.gov (Ron Baalke) writes:
>                              Voyager 1
>  On November 1, there was a slew to a position pointing
>toward Voyager 2 to observe interstellar hydrogen levels between the two
>spacecraft.
>                              Voyager 2
>     The Voyager 2 spacecraft collected UVS background in the anti-Voyager 1
>direction.  On November 1, the scan platform was slewed to point towards
>Voyager 1 to observe interstellar hydrogen levels between the two spacecraft.
>Background levels will be removed by subtracting out the data from when the
>spacecraft were pointed away from each other.

Does this mean that they beamed some radio waves at each other to measure
the absorbance at 21.1 cm?  Do the spacecraft actually have powerful
enough transmitters and sensitive enough receivers to actually detect
each other?

Or is it something to do with the absorbancy/emmission seen in all
directions, and we're trying to measure a teensy-weensy delta between
the background measured by spacecraft X minus the same background from
the same direction measured by spacecraft Y?

-- 
"Dad, what should I be when I grow up?"
"Honest." -- Robert M. Pirsig, _Zen and the Art of Motorcycle Maintenence_.

Wayne Hayes	INTERNET: wayne@csri.utoronto.ca	CompuServe: 72401,3525